metal yield meaning in Chinese

金属产出率
金属成品率

Abstract : the structure of water cooling system of high speed wire rod mill at nanjing iron and steel group co . and effect on some technical and economical indexes , such as productivity and metal yield , before modification is introduced . the detail revamping project of this cooling system and its actual effect after revamping is described
文摘:介绍了南京钢铁集团公司高线厂水冷线的结构，分析了水冷线改进前影响产量及成材率等技术经济指标的原因，阐述了水冷线改进的内容以及效果。